Restore SAGE_PARI_MAXVER

Author: antonio-rojas

build/pkgs/pari/spkg-configure.m4

@@ -1,6 +1,7 @@
 SAGE_SPKG_CONFIGURE([pari], [
   dnl See gp_version below on how the version is computed from MAJV.MINV.PATCHV
   m4_pushdef([SAGE_PARI_MINVER],["135245"])dnl this version and higher allowed
+  m4_pushdef([SAGE_PARI_MAXVER],["999999"])dnl this version and higher not allowed
   SAGE_SPKG_DEPCHECK([gmp readline], [
     AC_PATH_PROG([GP], [gp])
     if test x$GP = x; then dnl GP test